Schachenmayr Lumio knitting yarn is part of the My Mountain worldwide promotional campaign. Fiber Content: 93% Acrylic, 7% Other Fibers. Weight & Yardage: Super Bulky yarn weight, 150 grams, 82 yards (75 meters). Gauge: 2 stitches = 1 inch using US 15 (10mm) knitting needles.